Revision 10
Working function kbc_test_scan()
| keyboard.c | ||
|---|---|---|
| 1 |
#include <lcom/lcf.h>
|
|
| 1 |
#include "keyboard.h"
|
|
| 2 | 2 |
|
| 3 |
#include <lcom/lab3.h> |
|
| 4 |
|
|
| 5 |
#include <stdbool.h> |
|
| 6 |
#include <stdint.h> |
|
| 7 |
#include "i8042.h" |
|
| 8 |
|
|
| 9 |
|
|
| 10 |
u8int_t scan_code=0; // make code or break code |
|
| 3 |
uint8_t scan_code=0; // make code or break code |
|
| 11 | 4 |
int keyboard_id = KEYBOARD_IRQ; // KEYBOARD_IRQ is defined in interrupt.h in .minix-src folder |
| 12 | 5 |
uint32_t cnt = 0; // counter of sys_inb calls |
| 13 | 6 |
|
| ... | ... | |
| 24 | 17 |
cnt++; |
| 25 | 18 |
#endif |
| 26 | 19 |
|
| 27 |
|
|
| 28 | 20 |
return 0; |
| 29 | 21 |
} |
| 30 | 22 |
|
| 31 | 23 |
void (kbc_ih)(void){
|
| 32 |
u8int_t status_reg;
|
|
| 24 |
uint8_t status_reg;
|
|
| 33 | 25 |
|
| 34 |
if(util_sys_inb(STATUS_REG,status_reg)!=0){ //checks if there is an error
|
|
| 26 |
if(util_sys_inb(STATUS_REG,&status_reg)!=0){ //checks if there is an error
|
|
| 35 | 27 |
return; |
| 36 | 28 |
} |
| 37 | 29 |
if(((status_reg & STAT_REG_OBF)==0) ||((status_reg&(STAT_REG_PAR|STAT_REG_TIMEOUT))!=0)){ //checks if there is a parity or timeout error (mask -> 0xC0, bit 7 and 6 set) and checks if output buffer is empty
|
| 38 | 30 |
return; |
| 39 | 31 |
} |
| 40 |
util_sys_inb(OUTPUT_BUF,status_code);
|
|
| 32 |
util_sys_inb(OUTPUT_BUF,&scan_code);
|
|
| 41 | 33 |
|
| 42 | 34 |
} |
| 43 | 35 |
|
Also available in: Unified diff